Heavy Baryons in a Relativistic Quark Model with a Nonlocal Interaction of Light Quarks
نویسندگان
چکیده
Semileptonic decays of bottom and charm baryons are considered within a relativistic three-quark model with the Gaussian shape for the baryon-three-quark vertex and standard quark propagators.
منابع مشابه
Spectra of Baryons Containing Two Heavy Quarks
The spectra of baryons containing two heavy quarks test the form of the QQ potential through the spin-averaged masses and hyperfine splittings. The mass splittings in these spectra are calculated in a nonrelativistic potential model and the effects of varying the potential studied. The simple description in terms of light quark and pointlike diquark is not yet valid for realistic heavy quark ma...
متن کاملDoubly heavy baryons in a quark model with AdS/QCD inspired potential
This is the only observed baryon comprising two heavy quarks: no other experiment has observed these states so far. However the quark model predicts their existence and is able to estimate their masses. Baryons can be studied by potential models in two different ways. The first one consists in studying the three body problem, in which the potential term is the sum of the interactions between ea...
متن کاملOne-Pion Charm Baryon Transitions in a Relativistic Three-Quark Model
We study one-pion transitions between charm baryon states in the framework of a relativistic three-quark model. We calculate the charm baryon-pion coupling factors that govern the S-wave, P-wave and D-wave one-pion transitions from the s-wave and the lowest lying p-wave charm baryon states down to the s-wave charm baryon states. For these we obtain: gΣcΛcπ=8.88 GeV −1, fΛc1Σcπ=0.52 and fΛc1Σcπ=...
متن کاملRelativistic Description of Semileptonic Decays of Heavy Baryons
Semileptonic decays of heavy baryons consisting of one heavy (Q = b, c) and two light (q = u, d, s) quarks are considered in the heavy-quark–light-diquark approximation. The relativistic quasipotential equation is used for obtaining masses and wave functions of both diquarks and baryons within the constituent quark model. The weak transition matrix elements are expressed through the overlap int...
متن کاملSemileptonic decays of double heavy baryons
We study the semileptonic decays of the lowest lying double heavy baryons using the relativistic three-quark model. We do not employ a heavy quark mass expansion but keep the masses of the heavy quarks and baryons finite. We calculate all relevant form factors and decay rates.
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 1996